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Montmorillonite-Polyalcohol Complexes: Part II

Published online by Cambridge University Press:  01 January 2024

George Brunton ,
Rodney Tettenhorst  and
Carl W. Beck
George Brunton
Affiliation:
The Pure Oil Company, Research Center, Crystal Lake, Illinois, USA Department of Mineralogy, The Ohio State University, Columbus, Ohio, USA Department of Geology, Indiana University, Bloomington, Indiana, USA
Rodney Tettenhorst
Affiliation:
The Pure Oil Company, Research Center, Crystal Lake, Illinois, USA Department of Mineralogy, The Ohio State University, Columbus, Ohio, USA Department of Geology, Indiana University, Bloomington, Indiana, USA
Carl W. Beck
Affiliation:
The Pure Oil Company, Research Center, Crystal Lake, Illinois, USA Department of Mineralogy, The Ohio State University, Columbus, Ohio, USA Department of Geology, Indiana University, Bloomington, Indiana, USA
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Abstract

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Oscillating-heating X-ray diffraction was used to determine d-spacings and intensity changes of the (001) diffraction maximum for various combinations of 3 clays, 6 cations and 7 polyalcohols from 20°C to 1000°C under non-equilibrium conditions.

The temperature of collapse of the one layer complex was measured. Analysis of variance of this parameter for a model containing 3 clays, 6 cations and 7 polyalcohols showed that there is a significant difference among cations and polyalcohols but not among clays.

Additional work on one clay, 6 cations and 18 polyalcohols shows that ΔT—the difference in temperature between the collapse of the clay-organic complex and the boiling point of the polyalcohol—is proportional to the length of the carbon chain ; ΔT is also a function of the number and position of the OH groups.

The mean temperatures of final collapse for all polyalcohols are related to the valence of the interlayer cations and inversely related to their ionic radii.

There are two groups of d-spacings for the one-layer complexes. Complexes with polyalcohols having OH groups at the ends of the chain have mean d-spacings between 13.6–13.7 Å, while complexes with polyalcohols with interior OH groups have mean d-spacings of 13.9–14.0 Å.

Type
Symposium on Clay Mineral Transformation
Information
Clays and Clay Minerals (National Conference on Clays and Clay Minerals) , Volume 11 , February 1962 , pp. 105 - 116
Copyright
Copyright © The Clay Minerals Society 1962

Footnotes

Published by permission of the Pure Oil Company.

References

Brownlee, K. A. (1960), Statistical Theory and Methodology in Science and Engineering, John Wiley, New York.Google Scholar
Hoffman, R. W. and Brindley, G. W. (1960) Adsorption of non-ionie aliphatic molecules from aqueous solutions on montmorillonite. Clay-organic studies—II: Geochim. et Cosmochim. Acta, v. 20, pp. 15–29.Google Scholar
Tettenhorst, Rodney, Beck, C. W. and Brunton, G. (1960) Montmorillonite-polyalcohol complexes: Clays and Clay Minerals, 9th Conf., Pergamon Press, pp. 500–519.Google Scholar
Grim, R. E. and Kulbicki, G. (1961) Montmorillonite: High temperature reactions and classification: Amer. Min., v. 46, pp. 1329–1369.Google Scholar